The student project Elba at KTH started in 2011 and is a project where a battery driven prototype car is developed. The vehicle competes in Eco Shell Marathon in Rotterdam, Holland. In this competition the vehicle that travels a certain distance including several starts and stops with the lowest energy consumption wins. To minimize the consumption is therefore very important, which requires knowledge of the vehicles energy losses.A vehicle's energy losses depends on several factors and can be divided into the powertrain efficiency and the driving resistance. The driving resistance can then be divided in to rolling and air resistance, if smaller losses like vibrations are ignored.

The aim of this thesis is to examine the historical use of "poison cabinets", or restricted shelves, in Swedish libraries. Drawing upon the theories of Mary Douglas and Michel Foucault, it also seeks to sketch a cultural and ideological context of the practice; with the emphasis on social or mental hygiene, and disciplinary aspects. Through qualitative interviews as well as digitalized recordings of librarians active during the first half of the 20th century, actual examples of poison cabinets are presented. A closer examination is conducted of past collections at Lund University Library, and two large public libraries situated in Växjö and Sigtuna. The essay also investigates views on library censorship, controversial literature, and other related subjects reflected in th elibrary press during the period 1916-1979.

AbstractTitle: Accounting firms´ view on the (new law) in joint-stock companiesCourse: Business Administration, Financial Accounting in Corporations and Groups, Ad-vanced Course, 15 ECTSAuthors: Mikaela Uveby, Shadi Nourbehesht, Almira DizdarevicAdvisor: Kent TrosanderProblem: During the last few years, more importance and emphasis has been put on auditors and accounting in general due to a number of company and business scandals on both national and international levels. The United States as well as the EU consid-ered it a necessity to make regulations stricter when it comes to auditing and ac-counts in order to increase the public trust to accounting. At January 1st, 2007, Sweden also changed its law concerning accounting firm challenges. The new law states that as soon as someone of the auditor?s co-workers assists a client with some part of the basic bookkeeping, the main bookkeeping or the drawing-up of the an-nual account, the challenge situation becomes a fact.Purpose: The purpose of the essay is to examine and inquire into how the renewed law con-cerning accounting firm challenges, that was established and put to action at Janu-ary 1st, 2007, has affected accounting firms.Method: The writers have chosen to complete qualitative interviews in order to get a deeper insight to and an understanding of the topic.Conclusion: One year after the renewal of the law, the writers have reached the conclusion of that the new law has not had a great impact on the accounting firms.

This study focuses on why people not longer want to be a part of a religious communion they have earlier been a part of. To examine this I have made seven interviews with people who have left their previous communions. Together with the methodological and theoretical discussions on discourse analysis, Richard Jenkins discussions on identity and theories concerning the post-modern society, I have made an analysis on how these people consider their previous communions and its members. They refer i.e. to the social control, the ?closed? culture and the non-questioning-culture that constitute the communions and its techniques.

Optimizing energy systems is, in Sweden, as in many other countries, of growing interest. District heating systems are no exception. In 2012, 285 out of 290 municipals in Sweden had district heating in use and the majority of these systems have a higher return temperature than that which is possible with an error-free substation of day current technology. To, when possible, lower the return temperature is a way of increasing the effectiveness of the district heating system.This study means to investigate, through simulations and calculations, how big of a reduction in production cost a lower temperature in the city of Ystad?s district heating system would correspond to.

The sun is an endless energy source and the heat it produces can be used to heatup our homes. This technology is relatively old and was introduced in the late70-s. There are two kinds of solar collectors that are most frequently used todayand these are plain solar collectors and vacuum solar collectors. The plain solarcollectors are the once that are used the most but the vacuum solar collectorshave increased more as a percentage the last couple of years.The biggest question asked regarding an investment in solar heating is if theplant is economically profitable. This question has no direct answer because itis dependent on a couple of prerequisites.

The purpose of this paper is to juxtapose the theories of learning that are reflected in student?s perspectives of the learning log with that of the pedagogical intentions of the curriculum in order to examine the discrepancy between the experienced and the intentional learning objectives. The paper is divided into two sections. The first section is a literature survey on theories related to the learning log and the curriculum. The second part is constituted by three semi-structured group interviews concerning student´s views on the learning log.

This study aims to visualize the youngest preschool children matematical learning in the free game. In my study the mathematics will be analyzed  based on the interactions children participate in, and how children experience mathematics through the lived body.I have chosen to undertake a qualitative research in form of observations. Through this research method, I would approach the child's perspective, which means that i analyze the material that the children in the observations reveals to me as a researcher.The results of the study show that children experience mathematics skills both through the lived body, as well as in interaction situations between children. The mathematics are around among us, all the time. This is very important to take into account for children's continued development of mathematical knowledge..

The violence against women is an important matter. In Sweden there are several organisations that takes care of the women and children in need.One of the many organizations you can turn to is women's shelter organizations. They are nonprofit organizations. They depend on the contribution of peoples free time and on the government's awareness of the work that the organization do. The social services has the main responsibility to take care of women and children in need.

Play is an important part of children´s everyday life, it is through play children develop. Play occurs a lot in kindergarten and in this study, the aim is to examine how play activities play is used in preschool teaching and the role of the teacher´s in the play. Video recordings of play activities done and qualitative methods (conversation analysis) has been used to analyze the video recordings. The results of this study show that play are widely used as a pedagogical tool in preschool. It is through play children develop.

The thesis describes a completely new biofuel system to generate particle-free heat from combustion of ash-containing biofuel particles at high temperatures.The suggested system gives opportunities to introduce biofuels in new areas.Main components in the suggested system is a heat radiating combustion chamber intended for pulverized wood, combined with regenerators to extract heat from flue gases and simultaneously preheating the combustion air.The thesis contains a description of the suggested system, theoretical considerations, calculations regarding the combustion, and includes results from tests performed.The results from calculations and tests performed concludes that the system is workable and possible to apply..

Today green tree retention, together with leaving dead wood, is a common practice with the aim to reduce negative impacts on biodiversity and environment due to clear-felling. To better understand whether this conservation practice also makes a long-term difference, it is important to know what happens to these trees after harvest. Few studies have made an assessment of what happens to retention trees over a longer time period. In this study I inventoried retention trees that were left at clear-cuts six, twelve and eighteen years ago. I carried out a re-inventory of 57 retention patches (divided into free-standing tree groups, small swamp forests and edge zones) and free standing dead trees, spread over 25 previous clear-cuts in central Sweden.

This thesis examines the ideological implications of an emerging shift in human rights-issues regarding information. As Intellectual Property becomes increasingly important to the economy of developed nations previously commonly owned or unprotected information runs a real risk of becoming privatized. The World Trade Organization and its binding agreements GATS and TRIPS are subjected to a critical ideology-analysis, with special efforts to elucidate possible effects on the public service realm and its commitment as provider of free information as a human right. The result suggests that not only does a threat to information as such a right exist, but that its ideological basis however seemingly rooted in a liberal/neoliberal context actually in its express views on information deviates from liberal/neoliberal theory in many ways, and that there are theoretical inconsistencies in that same ideology..

Detta examensarbete är utfört på uppdrag från AVL Södertälje Powertrain Engineering AB.Målet med arbetet har varit att utveckla ett styrsystem för ett elektroniskt styrt pneumatiskhydraulisktventilsystem på en encylindrig förbränningsmotor i en testcell. AVL är enoberoende firma som utvecklar drivlinor med förbränningsmotorer samt instrumenterings- ochtestsystem. Ventilsystemet, med ett fungerande styrsystem, ska användas i AVLs utvecklingsochforskningsarbete på förbränningsmotorer.Ventilsystemet,Free Valve Technology, är utvecklat av Cargine Engineering AB och består avelektroniskt styrda pneumatisk-hydrauliska aktivatorer som opererar en motorventil individuellt.Aktivatorernas styrsystem har utvecklats helt iSimulink och implementerats som en integreraddel i det av AVL utvecklade motorstyrsystemet Raptor. Hårdvaran och plattformen är ett rapidprototyping system från dSPACE GmbH. Systemet har visat sig fungera tillfredsställande i entestcellmiljö vid lyfthöjder större än 3 mm och varvtal lägre än 2500 rpm, även underförbränning.

Weblogs, or blogs, are frequently modified web pages with a series of archived entries, generally in reverse chronological sequence. This thesis focuses on the rapid-growing phenomenon of weblogs and the fact that individuals with a background in library and information science are frequent users of weblogs. Since this is an explorative inductive study the ultimate purpose can be described as to find out what ?blogging? as activity is about. The research questions posed are: Why do individuals with a background in library and information science use weblogs? How does their professional identity affect their blogging? And finally; how do they use the weblog to create networks with other bloggers? The empirical material consists of audiotaped interviews with five informants who are all employed in knowledge work, either as librarians or information specialists.